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Padlock Patent — Keyed

Patent 4345447

Inventor: Poon C. Keung

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Patent # 4345447
Issue Date 1980-11-03
Inventor Poon C. Keung
Type Keyed

Patent Drawings

Patent 4345447 drawing 1 Drawing 1 Patent 4345447 drawing 2 Drawing 2 Patent 4345447 drawing 3 Drawing 3

Patent Details

Patent Number 4345447
Issue Date 1980-11-03
Inventor Poon C. Keung
Patent Type Keyed
External Link https://patents.google.com/patent/US4345447/en ↗
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